US9052061B2 - Well gate valve greasing tool and method of use - Google Patents
Well gate valve greasing tool and method of use Download PDFInfo
- Publication number
- US9052061B2 US9052061B2 US13/672,479 US201213672479A US9052061B2 US 9052061 B2 US9052061 B2 US 9052061B2 US 201213672479 A US201213672479 A US 201213672479A US 9052061 B2 US9052061 B2 US 9052061B2
- Authority
- US
- United States
- Prior art keywords
- housing
- actuator assembly
- piston
- grease
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N3/00—Devices for supplying lubricant by manual action
- F16N3/10—Devices for supplying lubricant by manual action delivering grease
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/36—Features relating to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
Definitions
- This invention relates in general to well gate valves and in particular to a tool for unfreezing and lubricating a gate valve.
- Oil field valves are widely used for production of oil and gas.
- One type of valve commonly used is a non rising stem gate valve.
- the actuator to move the gate has a handle that rotates a threaded translation sleeve, causing a non rotating stem inside the sleeve to move the gate.
- These valves have grease zerk fittings on the valve handles to grease the moving parts of the actuator.
- An apparatus for lubricating a valve.
- the valve has an actuator assembly that moves a valve element when rotated.
- the actuator assembly also has a grease injection passage.
- the apparatus comprises a housing having first and second ends and a cylindrical bore with an axis.
- a piston is carried in the bore for axial movement relative to the housing.
- the second end of the housing is open for inserting, the actuator assembly into the bore.
- a seal in the bore adjacent the second end of the housing seals to the actuator assembly to define a grease chamber between the piston and the actuator assembly that is in fluid communication with the grease passage.
- a fill port in a side wall of the housing allows one to introduce grease into the grease chamber.
- a piston rod joins the piston and protrudes from the first end of the housing, so that axially moving the piston rod causes the piston to move in an axial direction relative to the housing to force the grease from the grease chamber through the grease injection passage.
- a lock member is mounted to the housing for engaging the actuator assembly to cause the actuator assembly to rotate in unison with the housing when the housing is rotated, so as to move the valve element while grease is being forced through the grease injection passage.
- the lock member preferably comprises a lock pin that extends through a hole in a side wall of the housing for engaging the actuator assembly of the valve.
- a lever extends laterally from the housing for imparting rotation to the housing.
- the piston rod has external threads, and the bore has internal threads adjacent the first end of the housing that are engaged by the external threads of the piston rod, so that rotation of the piston rod relative to the housing moves the piston axially.
- the piston rotates in unison with the piston rod.
- Drive flats are on a portion of the piston rod that protrudes from the housing for receiving a tool to impart rotation to the piston rod.
- the drive flats may be a pair of nuts secured to the external threads of the piston rod.
- FIG. 1 is a sectional view of a prior art gate valve, shown in a closed position, and capable of being greased with the tool of this disclosure.
- FIG. 2 is a sectional view of the gate valve of FIG. 1 , shown in an open position.
- FIG. 3 is a sectional view of a greasing tool for greasing the gate valve of FIG. 1 , shown coupled to the gate valve of FIG. 1 .
- FIG. 4 is a sectional view of the greasing tool of FIG. 3 , shown with its piston and housing in a retracted position.
- FIG. 5 is top view of the greasing tool of FIG. 3 .
- FIG. 6 is a perspective view of the greasing tool of FIG. 3 .
- valve 11 is a typical gate valve, also called a mud valve, used in oil and gas well production.
- Valve 11 has a body 13 with a transverse flow passage 15 .
- a bonnet 16 secures to body 13 and has a cavity 17 that intersects flow passage 15 .
- Seat rings 19 are mounted in flow passage 15 in alignment with cavity 17 .
- a gate 21 moves linearly from the open position shown in FIG. 1 to the closed position shown in FIG. 2 located between seat rings 19 .
- a non rotating rising stem 25 moves gate 21 in this example and is connected to gate 21 by a T-slot arrangement 27 .
- Gate valves that employ rotating non rising stems are also commonly used.
- An optional flushing port 29 with a fitting allows cleansing fluid to be periodically injected into cavity 17 to remove debris.
- a stem seal 31 seals between bonnet 16 and stem 25 .
- An actuator 33 secures to bonnet 16 for moving stem 25 along its axis to open and close gate 21 .
- Actuator 33 includes an actuator housing 35 that has an external flange 37 with bolt holes 39 for bolting to bonnet 16 .
- Actuator housing 35 has internal threads 41 located in a bore or chamber 43 .
- Stem 25 extends through a flange or weather seal 40 at the base of chamber 43 .
- a translation sleeve 45 extends into actuator housing bore 35 and has external threads 46 that engage internal threads 41 .
- Translation sleeve 45 also has internal threads 47 in an upper portion of its interior.
- Stem 25 has external threads 48 that engage internal threads 47 in translation sleeve 45 .
- a grease injection passage 49 extends within stem 25 from the outer end of stem 25 to an outlet 51 located on a side surface of stem 25 below stem threads 48 .
- Grease injection passage 49 is normally open.
- a seal 53 seals between translation sleeve 45 and actuator housing 35 .
- a valve handle 55 mounts to the outer end of translation sleeve 53 .
- Valve handle 55 has a hub 57 and outward extending spokes 59 .
- One of the spokes 59 has an inner end that extends into a hole 61 in translation sleeve 53 to cause translation sleeve 53 to rotate when handle 55 is rotated.
- Hub 57 has a hole 62 for receiving a grease zerk fitting to introduce grease into injection passage 49 .
- rotating handle 59 in one direction causes translation sleeve 45 to rotate while stem 25 and actuator housing 35 do not rotate.
- the rotation causes stem 25 to move inward, moving gate 21 to the closed position.
- Translation sleeve 45 also moves inward into actuator housing bore 43 , reducing the volume of actuator housing chamber 43 . Rotating in the opposite direction causes the reverse to occur.
- valve greasing tool 63 has a cylindrical housing 65 with a first end 67 and a second end 69 .
- a bore 71 extends along a longitudinal axis 72 between first end 67 and second end 69 .
- Internal threads 73 are located in bore 71 near first end 67 .
- a seal 75 in bore 71 near second end 69 will seal around an exterior part of translation sleeve 45 that protrudes from actuator housing 35 .
- Tool housing 65 also has an internal shoulder 77 in bore 71 that abuts the rim of translation sleeve 35 when inserted into bore 71 .
- a lock pin 79 extends through a threaded hole 80 in the side wall of tool housing 65 and has an inner end that extends into hole 61 in translation sleeve 45 .
- Hole 61 is the same hole that is engaged by valve handle 55 when greasing tool 63 is not being used.
- Lock pin 79 locks tool housing 65 to translation sleeve 45 for rotation in unison.
- Lock pin 79 has a seal 78 that seals lock pin 79 within threaded hole 80 .
- a piston 81 is carried in tool housing 65 for movement along axis 72 .
- Piston 81 has a seal 83 that slidingly engages and seals to tool housing bore 71 .
- Piston 81 defines one end of a fluid injection chamber 82 in bore 71 , with the other end being translation sleeve 45 and stem 25 .
- the maximum volume of fluid injection chamber 82 occurs when piston 81 is at the upper end of bore 71 .
- the maximum volume of fluid injection chamber 82 is preferably the same as the maximum volume of housing actuator bore 43 when translation sleeve 45 is in the upper position.
- a piston rod 85 extends from piston 81 and has external threads 87 that engage bore internal threads 73 .
- Piston rod 85 may be integrally formed with piston 81 , as shown, or it may be a separate member connected by a rotational arrangement that allows piston rod 85 to rotate relative to piston 81 .
- Piston rod 85 protrudes from first end 67 of tool housing 65 and has a drive flat arrangement on its outer end for receiving a tool to impart rotation to piston rod 85 .
- the drive flat arrangement comprises two threaded nuts 89 , 91 that engage piston rod threads 87 and have drive flats on their exteriors.
- nuts 89 , 91 are placed in abutment with each other. Rotating drive nut 89 into abutment with drive nut 91 and continuing rotation causes piston rod 85 to rotate in one direction. Similarly, rotating drive nut 91 into abutment with drive nut 89 and continuing rotation causes piston rod 85 to rotate in the opposite direction.
- a conventional wrench is used to engage drive nuts 89 , 91 .
- flats could be formed directly on piston rod 85 .
- One or more fill ports 93 extend through the side wall of tool housing 65 at a point between internal shoulder 77 and piston 81 .
- Fill ports 93 are employed to introduce fluid into fluid injection chamber 82 .
- the operator may secure a needle valve 95 to one of the fill ports 93 to control the injection of fluid into fluid injection chamber 82 .
- a conventional pump (not shown) may be used to inject the fluid through needle valve 95 .
- Several fill ports 93 are illustrated in FIG. 5 , so as to give an operator an option of where to conveniently attach needle valve 95 .
- Plugs 97 close off the fill ports 93 not connected to needle valve 95 .
- tool 63 has several grease zerk fittings 99 to allow an operator to use a conventional grease gun to inject grease into fluid injection chamber 82 .
- Torque is also intended to be imposed on tool housing 65 during the servicing process.
- levers or bars 101 secure to tool housing 65 and extending radially outward.
- drive flats 103 FIG. 6
- valve 11 In operation, normally valve 11 will be seized in an open position, preventing it from closing.
- the operator removes valve handle 55 and opens one of the tool fill ports 93 , such as by removing one the plugs 97 .
- the operator With piston rod 85 in it outer position fully retracted, the operator inserts tool housing 65 over translation sleeve 45 .
- Seal 75 seals to the outer diameter of translation sleeve 45 , and the open fill port 93 facilitates installing tool housing 65 by allowing air within fluid injection chamber 82 to be displaced.
- valve 11 is oriented horizontally, thus tool axis 72 will be horizontal.
- the operator orients needle valve 95 so that it is on an upper side of tool housing 65 .
- the operator screws lock pin 79 into threaded hole 80 and into hole 61 in translation sleeve 45 .
- the operator re-installs plug 97 and fills fluid injection chamber 82 with a rust dissolving solvent through needle valve 95 or another fill port 93 . It is not necessary that fluid injection chamber 82 be completely filled with the solvent, but it is preferable.
- actuator housing chamber 43 should be completely filled with the solvent.
- the solvent is retained within actuator housing chamber 43 by weather seal 40 and normally does not flow into contact with or past stem seal 31 into cavity 17 . Because valve 11 is in an open position, actuator housing chamber 43 will be in its maximum volume position.
- the operator After moving piston rod 85 to the inner position, the operator typically waits about ten to fifteen minutes for the solvent to dissolve the rust. Then the operator begins rotating tool housing 65 to impart rotation to translation sleeve 45 . It may be necessary to initially rotate tool housing 65 back and forth. Piston rod 85 may still be in its inner position during rotation of tool housing 65 . Eventually, the operator should be able to rotate tool housing 65 and translation sleeve 45 until translation sleeve 45 is in its inner position and gate 21 closed, as shown in FIG. 2 . While doing so, actuator housing chamber 43 decreases in volume. The operator opens needle valve 95 to allow the displaced solvent in actuator housing chamber 43 to flow through grease injection passage 49 out needle valve 45 and onto an absorbent pad placed below tool 63 .
- the operator also rotates tool housing 65 to open valve 11 . Rotation of tool housing 65 causes translation sleeve 45 to advance to its outer position, shown in FIG. 3 , which provides the maximum volume for actuator housing chamber 43 .
- the operator then introduces grease into tool housing chamber 82 , such as by a grease gun through one of the zerk fittings 99 . The amount of grease introduced may be sufficient to completely fill tool housing chamber 82 .
- the operator may then rotate piston rod 85 in the opposite direction to move piston rod 85 to its outer position and increase the volume of grease injection chamber 82 to its maximum amount.
- grease injection chamber 82 should be mostly empty since the grease will have already been forced through grease injection passage 49 into actuator housing chamber 43 .
- the operator then may rotate tool housing 65 to causes actuator sleeve 45 to again move inward, closing valve 11 . When doing so, some of the grease contained in actuator housing chamber 43 will be displaced back through grease injection passage 49 into fluid injection chamber 83 .
- operator may then remove injection tool 63 from actuator 63 and re-install valve handle 55 .
- the amount of grease retained in actuator 33 will be approximately equal to the volume of actuator housing chamber 43 while valve 11 is in its closed position. The operator can then use valve handle 55 to again open valve 11 .
- the greasing tool is easy to use and works well to unfreeze and lubricate oil field valves. Freeing up valves that have seized up greatly reduces the cost of replacing the valves. The servicing can be done on site while the valve is still coupled to wellhead equipment.
Abstract
Description
Claims (17)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/672,479 US9052061B2 (en) | 2012-11-08 | 2012-11-08 | Well gate valve greasing tool and method of use |
PCT/US2013/067727 WO2014074386A2 (en) | 2012-11-08 | 2013-10-31 | Well gate valve greasing tool and method of use |
CA2891109A CA2891109C (en) | 2012-11-08 | 2013-10-31 | Well gate valve greasing tool and method of use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/672,479 US9052061B2 (en) | 2012-11-08 | 2012-11-08 | Well gate valve greasing tool and method of use |
Publications (2)
Publication Number | Publication Date |
---|---|
US20140124298A1 US20140124298A1 (en) | 2014-05-08 |
US9052061B2 true US9052061B2 (en) | 2015-06-09 |
Family
ID=49582825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/672,479 Expired - Fee Related US9052061B2 (en) | 2012-11-08 | 2012-11-08 | Well gate valve greasing tool and method of use |
Country Status (3)
Country | Link |
---|---|
US (1) | US9052061B2 (en) |
CA (1) | CA2891109C (en) |
WO (1) | WO2014074386A2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10260327B2 (en) * | 2014-05-30 | 2019-04-16 | Ge Oil & Gas Pressure Control Lp | Remote mobile operation and diagnostic center for frac services |
USD869531S1 (en) | 2018-04-17 | 2019-12-10 | Extension Depot LLC | Grease tool with recessed fitting |
US20200018439A1 (en) * | 2018-07-10 | 2020-01-16 | Quarter Turn Pressure Control, LLC | Valve grease blocks for high pressure valves and high pressure valves using the same |
US20210372272A1 (en) * | 2018-11-13 | 2021-12-02 | Vault Pressure Control Llc | Surface completion system for operations and monitoring |
US11466536B2 (en) | 2019-10-04 | 2022-10-11 | Vault Pressure Control, Llc | Hydraulic override for confined space |
US20220341542A1 (en) * | 2019-05-08 | 2022-10-27 | Fmc Technologies, Inc. | Valve Control and/or Lubrication System |
US11814939B2 (en) | 2019-10-25 | 2023-11-14 | Cameron International Corporation | System and method for valve greasing in a well tree |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201213808D0 (en) * | 2012-08-03 | 2012-09-12 | Enston Robert P | Improved pipeline apparatus |
CA2855789C (en) | 2014-07-04 | 2015-07-28 | Progressive Oilfield Services Ltd. | Improved tool for unseizing and lubricating well valves, and method of unseizing said valves |
US10358891B2 (en) | 2016-10-24 | 2019-07-23 | Christopher M. Knott | Portable lubrication unit for a hydraulic fracturing valve assembly, and method for pre-pressurizing valves |
CN113751290B (en) * | 2020-06-03 | 2022-09-02 | 中国石油化工股份有限公司 | Fat instrument is annotated to valve |
Citations (22)
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US240214A (en) * | 1881-04-12 | Joseph l | ||
US966861A (en) * | 1908-05-05 | 1910-08-09 | William Rubly | Hand-oiler. |
US1111755A (en) | 1914-09-29 | J E Mcdaniel | Grease compressor for engine rods. | |
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US1435276A (en) * | 1920-02-16 | 1922-11-14 | Bignell Gerald | Lubricator |
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US3175473A (en) * | 1962-05-01 | 1965-03-30 | Grinnell Corp | Spring and fluid pressure actuator |
US3595340A (en) * | 1969-06-30 | 1971-07-27 | Houdaille Industries Inc | Lubrication pump |
US3889922A (en) * | 1973-06-25 | 1975-06-17 | Acf Ind Inc | Valve and actuator assembly |
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US3958592A (en) * | 1974-02-06 | 1976-05-25 | Willis Oil Tool Co. | Safety shut-off valve |
US4014514A (en) * | 1975-06-27 | 1977-03-29 | Hills-Mccanna Company | High pressure diaphragm valve |
USRE34391E (en) * | 1989-04-24 | 1993-09-28 | Bearing lubricating device | |
GB2350412A (en) | 1999-05-22 | 2000-11-29 | Robert Peter Enston | Freeing of seized valves |
US7337805B2 (en) * | 2003-03-07 | 2008-03-04 | Swagelok Company | Valve with adjustable stop |
US7997983B2 (en) | 2002-05-15 | 2011-08-16 | Igt | Slot machine game having a plurality of ways to issue a percentage of a progressive award based upon any wager level (“percentage progressive”) |
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-
2012
- 2012-11-08 US US13/672,479 patent/US9052061B2/en not_active Expired - Fee Related
-
2013
- 2013-10-31 WO PCT/US2013/067727 patent/WO2014074386A2/en active Application Filing
- 2013-10-31 CA CA2891109A patent/CA2891109C/en active Active
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US966861A (en) * | 1908-05-05 | 1910-08-09 | William Rubly | Hand-oiler. |
US1217951A (en) | 1916-04-27 | 1917-03-06 | Engineers Specialty Company | Lubricator. |
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US3595340A (en) * | 1969-06-30 | 1971-07-27 | Houdaille Industries Inc | Lubrication pump |
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US4014514A (en) * | 1975-06-27 | 1977-03-29 | Hills-Mccanna Company | High pressure diaphragm valve |
USRE34391E (en) * | 1989-04-24 | 1993-09-28 | Bearing lubricating device | |
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US7997983B2 (en) | 2002-05-15 | 2011-08-16 | Igt | Slot machine game having a plurality of ways to issue a percentage of a progressive award based upon any wager level (“percentage progressive”) |
US7337805B2 (en) * | 2003-03-07 | 2008-03-04 | Swagelok Company | Valve with adjustable stop |
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Title |
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API 6A Mud Valves (Complete Solutions for Industrial Valves)-Neway Valve, Cat. No. E-MV-2004, pp. 1-4. |
International Search Report and Written Opinion issued in connection with corresponding Application No. PCT/US2013/067727 on Oct. 8, 2014. |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10260327B2 (en) * | 2014-05-30 | 2019-04-16 | Ge Oil & Gas Pressure Control Lp | Remote mobile operation and diagnostic center for frac services |
US10619471B2 (en) | 2014-05-30 | 2020-04-14 | Ge Oil & Gas Pressure Control Lp | Remote mobile operation and diagnostic center for frac services |
USD869531S1 (en) | 2018-04-17 | 2019-12-10 | Extension Depot LLC | Grease tool with recessed fitting |
US20200018439A1 (en) * | 2018-07-10 | 2020-01-16 | Quarter Turn Pressure Control, LLC | Valve grease blocks for high pressure valves and high pressure valves using the same |
US10941902B2 (en) * | 2018-07-10 | 2021-03-09 | Quarter Turn Pressure Control, LLC | Valve grease blocks for high pressure valves and high pressure valves using the same |
US20210372272A1 (en) * | 2018-11-13 | 2021-12-02 | Vault Pressure Control Llc | Surface completion system for operations and monitoring |
US11230917B2 (en) | 2018-11-13 | 2022-01-25 | Vault Pressure Control Llc | Surface completion system for operations and monitoring |
US11708756B2 (en) * | 2018-11-13 | 2023-07-25 | Vault Pressure Control Llc | Surface completion system for operations and monitoring |
US20220341542A1 (en) * | 2019-05-08 | 2022-10-27 | Fmc Technologies, Inc. | Valve Control and/or Lubrication System |
US11927306B2 (en) * | 2019-05-08 | 2024-03-12 | Fmc Technologies, Inc. | Valve control and/or lubrication system |
US11466536B2 (en) | 2019-10-04 | 2022-10-11 | Vault Pressure Control, Llc | Hydraulic override for confined space |
US11814939B2 (en) | 2019-10-25 | 2023-11-14 | Cameron International Corporation | System and method for valve greasing in a well tree |
Also Published As
Publication number | Publication date |
---|---|
WO2014074386A2 (en) | 2014-05-15 |
CA2891109A1 (en) | 2014-05-15 |
US20140124298A1 (en) | 2014-05-08 |
WO2014074386A3 (en) | 2014-11-20 |
CA2891109C (en) | 2020-03-10 |
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Owner name: GE OIL & GAS PRESSURE CONTROL LP, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HE, HENRY;THISTLE, SCOTT;SHANNON, CHRISTINA L.;SIGNING DATES FROM 20121002 TO 20121114;REEL/FRAME:029509/0821 |
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